Antec EDGE 650W 80 PLUS Gold Power Supply Review (Page 4)

| Sep 3, 2014 at 3:57 am CDT
Rating: 93%Manufacturer: Antec

Sound Testing

Sound testing is something new that we are starting with power supplies at TweakTown and this will be the first unit that we have officially done any audio measurements with. We are still in the process of getting things where we want them, but we wanted to give you a sneak peak of what we have to offer since low noise is such a key part of this power supply.

We set up two test systems to give you an idea of what you might come across. The first is a full blow quad-Crossfire rig with all the goodies to go with it. This is meant to give you an idea of what some enthusiast gamers hear while sitting at their desk. Second is our silent system with a passive CPU cooler, a single low-end GPU, and just a few of Antec's True Quiet UFO fans to move some air. This simulates what a user would be shooting for in a silent system for use as an office PC, or perhaps an HTPC.


The power supply was one heck of a thing to get installed properly simply because of the silicone anti-vibration mounts on the ends of the power supply. This is because the case doesn't have any room between the bottom add-in slot and the power supply. Without the silicone pieces it would like in perfectly. We wish Antec would have designed this into the enclosure similar to what be quiet! does as it would eliminate this problem.

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Installed and fired up, we can see the purpose of the honeycomb mesh on the sides. If they weren't covered with the clear plastic, it would vent the exhaust into the case and that wouldn't be beneficial to the system.

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Here are some basic sound levels from what we were able to ascertain in the office. The ambient noise measures in at 24.1 dB. This is as quiet as it gets with no electronics running, no fans, no air conditioner, etc. When our silent system is powered up, we see an increase of 2 dB while it is idling at the desktop. If we add a load to the system, such as playing back a Blu-ray ISO over the network, as you would with an HTPC, noise increases to just 27.5 dB. This is still incredibly quiet and barely noticeable.

To put that in perspective, you can still clearly hear other sounds such as birds outside and cars passing by on the road 50 feet away. Compare this to the enthusiast system that we have put together and it truly is silent. The monster rig with quad ASUS Radeon R9 290's sits idle at 33.2 dB. If we load the system down with BF4 for 30 minutes or so, we see that the enthusiast system is showing 64.3 dB.

Last updated: Apr 7, 2020 at 12:33 pm CDT

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Zac provides professional IT support by day, but plays the role of enthusiast by night. He's been building high-end custom computer for the nearly fifteen years and writing PC hardware reviews for the better part of a decade. Aside from computers, he also dabbles in quite a bit of home A/V equipment. Throughout the years, Zac has picked up an extensive knowledge of power circuitry and leverages this to provide the PSU reviews. When not found testing or writing, you can often find him speeding through the winding countryside on his motorcycle.

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